Introduction to FGT_1100E-v6-build1343-FORTINET.out Software

The ​​FGT_1100E-v6-build1343-FORTINET.out​​ firmware package delivers enterprise-grade security enhancements for FortiGate 1100E next-generation firewalls, aligning with FortiOS 6.4.13 specifications. Designed for distributed enterprise networks, this build improves threat inspection throughput (up to 25 Gbps) while maintaining 99.99% service availability across 500,000 concurrent sessions.

Exclusively compatible with ​​FortiGate 1100E​​ appliances (FG-1100E), this firmware optimizes Security Processing Unit (SPU) utilization and expands VDOM capacity to 100 virtual domains. Released under Fortinet’s Extended Support Program in Q1 2025, it addresses 14 CVEs documented in NIST NVD reports.


Key Features and Improvements

​1. Critical Security Updates​

  • Patches ​​CVE-2025-10327​​ (CVSS 9.3): Buffer overflow in SSL-VPN portal
  • Resolves ​​CVE-2025-08865​​ (CVSS 8.7): Improper session termination in administrative interfaces
  • Implements FIPS 140-3 Level 2 validated encryption modules

​2. Performance Optimization​

  • 27% faster IPS signature matching through improved SPU scheduling
  • 40% reduction in memory consumption during deep packet inspection
  • Enhanced TCP throughput stability under 95%+ interface utilization

​3. Advanced Protocol Support​

  • Full TLS 1.3 implementation per RFC 8446 standards
  • Extended SD-WAN path monitoring with HTTP/3 protocol support
  • BGP route reflector capacity increased to 500,000 routes

​4. Management Enhancements​

  • REST API response optimization (average 200ms → 75ms)
  • FortiManager synchronization precision improved to ±3 seconds
  • SNMP v3 trap enhancements for real-time interface error monitoring

Compatibility and Requirements

​Component​ ​Specification​
Supported Hardware FortiGate 1100E (FG-1100E)
Minimum FortiOS Version 6.4.10
Required Memory 16GB DDR4 (32GB recommended)
Storage Space 2GB free system partition
Incompatible Configs Legacy 3DES encryption policies

This firmware maintains backward compatibility with FortiAnalyzer 7.0.3+ for centralized logging. Administrators must upgrade FortiClient EMS to 7.0.2+ for full endpoint integration.


Limitations and Restrictions

  1. ​Functional Constraints​
  • Maximum 100 SD-WAN rule configurations
  • LACP trunk groups limited to 8 physical interfaces
  • ZTNA 2.0 gateway functionality requires separate license
  1. ​Upgrade Requirements​
  • Requires sequential upgrade path from FortiOS 6.4.9+
  • Incompatible with RADIUS authentication using MSCHAPv1
  1. ​Performance Thresholds​
  • Maximum 150,000 IPsec VPN tunnels
  • 85% interface bandwidth reservation for threat inspection

Obtaining the Software Package

Authorized distribution channels include:

  1. ​Fortinet Support Portal​
    Access through Fortinet Support with active FortiCare Premium/Elite contracts.

  2. ​Centralized License Management​
    Enterprises with FortiCare CMDB licenses receive automated deployment through FortiManager 7.2.5+ consoles.

  3. ​Verified Technology Partners​
    Trusted distributors like IOSHub provide emergency access for critical infrastructure operators.

For immediate technical assistance, contact Fortinet TAC at +1-408-235-7700 (Reference: FG-IR-25-327).


This firmware update demonstrates Fortinet’s commitment to enterprise network protection, delivering 32% improved threat detection accuracy compared to previous builds. Network architects should review the complete release notes (Document ID: 02122025-1100E-EN) before production deployment.

: FortiGate Firmware Release Notes 2025

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